_:vb10107 . _:vb16605 . _:vb10107 _:vb10108 . _:vb10108 . . "1.1.1.1.4.4" . . _:vb16519 . _:vb16519 _:vb16520 . . _:vb16605 . _:vb10296 . _:vb16605 _:vb16519 . _:vb10296 . . "ITP_Ballast" . "stable" . _:vb16520 . _:vb10107 . "Existence of ballast"@en . _:vb16520 . "2021-08-03"^^ . "2021-09-10"^^ . "Specifies whether track construction is with sleepers embedded in ballast or not."@en . _:vb10108 _:vb10296 .